The 7-to-9 Pin Transducer Adapter Cable connects 7-pin blue connector transducers to 9-pin xSonic display connectors.

Lowrance/Aimar 9-Pin to 7pin XSONIC Transducer Adaptor Cable. #000-13977-001.

Cable is used as an adapter to connect Airmar transducers with a 9-pin lead to a Lowrance unit with a 7-pin input